Neckar



Mar. 27,- 1923 1,449,757 E. JAUCH ET AL TAIME RECORDING `DEVICE Filed June 18,- 1921 4 sheets-sheet l Maf. 27, 192s- 1,449,757

E. JAUCH ET AL.

TIME RECORDING DEVICE Filed June 16, 1921 4 sheets-sheet 2 ci HHH Il I IIIIIHi Fig.5.

Mar. 27, 1923- 1,449, 757

E. JAUCH ET AL TIME RECORDING DEVCE Filed June 16, 192i 4 sheets-sheet 5 Invenicrs.'

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Mar. 27, 1923- E. JAUCH ET AL TIME RECORDING DEVICE 4 sheets-sheet' 4 Filed June 16, `l92l Inventors.'

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Patented Mar. 27, 1923.

UNITED STATES PATENT OFFICE.

EHNs'i1 JAUCH, EUGEN JAUCH, AND HEINRICH soHMrn, or sCHWENNINGEN-oN-THE- NECHAE, GERMANY.

TIME-RECORDING DEVICE.

Application filed J'une 16, 1921. Serial No. 478,022.

To all whom, 'it may concern.'

Be it known that we, ERNST JAUCH, EUGEN JAUCH, and HEINRICH SCHMID, citizens of the German Empire, residing at Schwenningen-on-the-Neckar, in the German Empire, have invented certain new and useful Improvements in Time-Recording Devices, of which th'e following is a specification.

In time recording devices in which the time records are printed upon cards or tickets the clock spring has hitherto been wound up by hand or by a motor. In the case of hand-wound devices the winding operation is liable to be forgotten and in a motor wound -device the motor may get out of order. It can also happen that the winding operation is intentionally omitted or interfered with without any proofs being left of such intention. In recent types of time recording devices the clock spring not only drives the clockwork itself, but it is also made to reverse the ink ribbon, and to shift the card guide to and fro into which the card is pushed for the purpose of receiving its impression, if these motions are not effected through the operation of the card printing lever. The entire operativeness of the device therefore depends on its being regularly wound up, or in other words on the trustworthiness of a person appointed to look after it.

The object of our invention is to produce a time recording device whose operation is effected from without only by the card printing lever, i. e. a device which is not subjected to any acts except those which are performed in using it for the purpose of checking times. The device arranged in this way is provided with a spring capable of storing up a certain amount of reserve energy so that the spring will only run down if the device is not used for a considerable time, for example a period of 6 days; and only in such cases will it be necessary to open the device and wind it up with a key. The device according to our invention, is also designed to be reliable, simple and solid. Finally, its arrangement is such that both ends of the clock spring are adapted to perform work when required.

To this end our time recording device is designed in such a manner that the card printing lever is alternately out of engagement and-through the medium of stepping gear-in engagement with the springwinit tional form, and Figs. 6,-8 another constructional form. Fig. 1 is a side view, Fig. 2 a view of Fig. 1 looking in the direction of the arrow A, Fig. 3 is a section throu h the shaft 7 as seen from the bottom of F 1g. 1, Fig. i is a plan view of the lower part of Fig. 1, and Fig. 5 illustrates the stops that limit the motion of the clock spring. Fig. 6 is a view of the second constructional form which corresponds to the view of the first constructional form shown in Fig. 2. Fig. 7 is a section of Fig. 6 on the line A-B. Fig. 7a is a fragment of Fig. i' showing the parts in different positions and Fig. 8 is a view as seen from the right of Fig. 6.

Referring to Figs. 1-5 1 is a spring-box which runs down in t-he direction of thearrow I. It is firmly fixed to the toothed wheel 2 and by this wheel and through the intermediate wheel 3 it drives the wheel 4 which is equal in size to wheel 2 and is firmly fixed on the sleeve 5. The sleeve 5 is journalled on the shaft 7 and carries a bevel wheel 6 fixed to its other end. Journalled on the shaft 7 beside the bevel wheel 6 is a cam disk Sik firmly fixed to a. pinion 9. Adjacent to the spur wheel 4l isa toothed wheel 10 which is fixed to the bevel wheel 11 and journalled on the sleeve 5. Also journalled on the sleeve 5 and situated between the bevel wheels 6 and 11 is a collar with a radial pin 13 on which is journalled a bevel wheel l2 that meshes with the bevel wheels 6 and 11. The pinlS engages with a projection that juts out laterally from the cam disk 8. The parts 5. 6, 11. 12 and 13 form a differential `gear in which 6 and 11 are the driving wheels and whose driven part is the pin 13.

In mesh with the toothed wheel 10 is a pinion 26 which is firmly fixed to a ratchet wheel 2l. A pawl 21 is kept in engagement vwith the ratchet wheel by a spring. The

pawl prevents backward rotation of the spindle of the spring-box. A stepping pawl 20 is arranged to be brought into engagement with the ratchet wheel and moved away therefrom. This is done by means of a rocker arm 16 arranged beside the stepping pawl 20 and whose lower forked arm is in engagement with a pin projecting from an. arm jutting out from the stepping pawl'20. The upper end of the arm 16 is pivotally connected 'to a link consisting ottwo parts 18 and 18 which are movable with'respect to each other in the direction ot their lengths and which are pushed apart by a spring 17. The said link is pivotally connected to one side plate of the trame. The spring 1T always pushes the arm 16 into one ot' its eX- treme positions, these positions being detined by two pins 19 in a side plate of the trame. L cam 111 projecting trom the cam disk 8 is so arranged that on the disk being turned in the sense of the arrow lV it will urge a pin on the arm 16 outwards and thus throw round the arm 16. An arm 16 which projects laterally from the arm 16 and then bends round so as tol extend parallel with the side plate and then bends upward so as to lie adjacent to the spur wheel 23, has a projection at its end which lies in the path of a pin 22 lined to the wheel 23 that meshes 7 with the pinion 9.

rlhe spur wheel 23 is seven times the size of the pinion 9. 1When the pin 22 strikes against the pointed proliection of the arm 16 it pushes the arm 16 into its inner end position. A. pin 31 fixed to the toothed wheel 23 projects into a circular slot 32 ot one side plate and thus limits the travel of the toothed wheel 23 and hence the travel ot the clockwork.

The printing lever 33 pivotally mounted `on the frame ozt the device is linked through the medium of a draught rod 33 to an arm 24 fixed on a shaft 34. Fixed tothe other end of the shaft 34 is an arm 24 which is linked to a two-armed lever 25 pivotally7 attached to the traine. rlhe other end ot the two-armed lever 25 engages with an arm 25 which is also pivotally attached to the traine. Linked to the other end of the arm 25 is the stepping pawl 20.

The devine which has been described -in detail operates in the following manner:

*Assuming that the clockwork has been wound up for the iirst time and started.

and that the stepping pawl 2O is brought into engagement with the ratchet'wheel 21. the ratchet wheel will be turned through a part of a revolution each time the printing lever 33 is depressed. rlhe ratchet wheel 21, when thus turned. operates through the wheels 26.' 10 and 28 to turn the spindle 29 of the spring-bof: so as` to wind up' the clock springtighter. During this motion the toothed wheel 1() turns in the senseotl the arrow X Fig. 1. As result otthis 'rotation of the wheel 10 the-bevel wheel '12* is turned by: the bevel wheel 11,4 the wheel l12 being thus caused to .roll upon the bevel wheel 6 and to swing the pin 13 roundv the shaft 7 in the direction .ot the Larrea X. @he ra 13 Carries the @am .dis-k.

8 and the pinion 9 round with it. Hence the spur wheel 23 is rotated in the direction of the arrow shown in Fig. 1. ln the course ot the rotation of the spur wheel 23 the vpin strikes against the pointed projection .of the arm 16', this taking place at the moment the clock spring is completely wound up. By the pin 22 engaging with the arm 16 the latter is thrown back into the position it is shown in Fig. 1. By this means the stepping pawl 2O is brought out of engagement with the ratchet wheel 21.

Buring the afore-said rotation ot the wheel 10 the springboxl rotates in the direction oit the arrow l Fig. 1 and through the medium ot the wheels 2, 3 and 4 and ot the sleeve 5 it drives the bevel wheel 6 in the direction of the arrow IV Fig. 1. The` amount of turning movement imparted to the pin 13, and through this pin to the cam disk 8 and finally to the spur wheel is diminished by thelrotation of the bevel wheel 6. rhe stepping pawl 2O is now rocked into its ineffective position and the bevel wheel 6 through the medium ot' the bevel wheel 12 turns the pin 13 round the shaft 7 in the direction oi' the arrow 1V. The rotation ot the pin 13 is imparted to the cam disk 8 and as soon as the cam 14 of this disk strikes against the pin 15 the lever 16 is thrown outwards so that its lower end returns the pawl 2O into engagement with the ratchet wheel 21. The continued use of the printing lever 33 now again results in the winding up of the clock spring. v

The spring-box 1 executes one revolution in 24 hours as does the wheel 4 and, if the wheel 1() remains stationary, the cam disk S in 'forty-eight hours. As the ratio ot transmission between the pinion and the spur wheel 23 is as one is to seven the spur wheel 23 executes one turn in fourteen days. The slot 32 which covers of a revolution thus allows the clock spring to run down for a period ottwelve days. At the end ot this period the clockwork is stopped by the pin 31 striking against the end of the slot 32. Hence. it theclock spring has been wound up.. a period ot disuse of the printing lever amounting to twelve days may expire betore the clock stops, and it is only atter this period that the clock requires restarting. lr no such period ot' disuse occurs a clock. atter it has once been started,

will keep on going it the printing lever is only pressed down Otten enough to wind up 'the spring for the time that elapses until the device is used again. The-clock may also be wound up afresh during periods of disuse by repeated depressions of the printing lever.

The/modification shown in Fiss. 6 8 is similar to the type shown in Figs. V15. yI he corresponding parts are designated with similar numerals'. "The lever 16, however, does not terminate at the bottom in a forkbut in a Haring end with a smooth up against the slide member 35 and against the bottom end of the lever 16. The motion of the card printing lever 33 is transferred through the draught rod 33, the lever 24, shaft 34, lever 39 and the push rod 44 to the lever 38.

-, taclied to a spur wheel 43 with which a detent 44 engages. The spur wheel 43 drives a pinion 46 on the shaft 47 through an intermediate wheel 45. A bevel wheel 48 at the other end of the shaft 47 drives the bevel wheel 49 on the vertical shaft 50. Through this shaft the motion is transferred through the bevel wheels 51 and 52 and through a number of intermediate wheels (not shown) to a shaft 53. The shaft 53 carries a crank disk 54 with a crank pin 55 thatV engages with a slot in an arm 56 directly connected to the card guide box 57. Arranged to rotate with the spring-box 1 is a time disk 58 whose pins 59 strike during their rotation against a lever 60. This lever which is fixed on the shaft 61 lifts each time it is deflected, a pallet from an escapement wheel (not shown) that detains the shaft 53.

The device operates as follows: According to the position of the spring-box relatively to its spindle the lever 16 is thrown to the right or left as in the case of a device first described herein. The right hand position of the lever 16 is shown in Fig. 7 and the left hand position in Fig. 7a.V

In the position shown in Fig. 7 the pin 37 slides to and fro on the bottom smooth end of the lever 16 without engaging with the ratchet wheel 21 when the card printing lever 33 is depressed. But in the position shown in Fig. 7'(l the lever 16 is out of the reach of thel pin 37 which lies upon the sliding member and thus keeps the pawl 2O out of engagement with the ratchet wheel 21. The pin 37 slips off the sliding member 35 and allows the pawl 20 to engage with the ratchet wheel 2l only when the card printing lever 33 is depressed. After engaging with the wheel 21 the pawl continues to move for a distance corresponding to the pitch of one tooth of the ratchet wheel. On the card printing lever 33 rising, the pawl 20 is pulled back. By this means the pin 37 is again caused to slide over the slide member 35 and continues sliding thereon until it reaches its normal position. It is thus seen that the springl is wound up without the pawl 20 being kept in continuous The pawls 42 are pivotally at engagement with the ratchet wheel in which position it would prevent the ratchet wheel 21 from rotating backwards.

When the ratchet wheel 2l is turned by the pawl 20 the spindle 29 is simultaneousl turned with the ratchet wheel 41 in the d1- rection of the arrow II Fig. 8. During this operation the spur wheel 43 is detained by the detent 44.

lVhen the escapement (not shown) that detains the shaft 53 is released by the lever the shaft 53 rotates in the direction of the arrow III, Fig. 6, being driven by the spindle 29 through the medium of the ratchet wheel 41, the pawls 42 and the wheels 43, 45, 46, etc. By this rotation of the shaft 53 a card guide box 57 is shifted step by step. To keep the guide box in its proper position it is permanentlv pushed towardsthe right by a spring.

In the constructiona'l form of thedevlce shown in Figs'. 6-8 the shifting of the card guide box is effecteddirectly by the clock spring. By this means a special spring arranged between the clock spring and the card guide is saved which otherwise would have to be provided for moving back the card guide. The card guide cannot be shifted directly by the spring-box because the latter has to run down at a uniform speed 'l' for the purpose of driving a clock. In the type of device shown in Figs. 1-5 the shifting of the card guide cannotvbe performed by the spindle of the spring-box because the spindle is locked by the continuous engagement of the pawl 2() with the ratchet wheel 21 during each period of engagement -between the card printing lever and the clock winding mechanism. But in the type shown in Figs. 6-8 work can be performed at all times not only by the spring-box, but also by the spindle because the slide member 35 keeps the stepping pawl 20 away from the ratchet wheel 21 also in the position in which the card printing lever 33 is in en-z gagement with the clock winding mechamsm.

Te claim:

l. In a time recording device, av springbox with aspindle and clock spring whose one end is attached to the spindle and whose other end is attached to the spring-box; a differential gear with a driven part and two driving wheels for driving the driven part; the one said driving wheel being adapted to cooperate with the spring-box and the other said driving wheel being adapted to cooperate with the said spindle; a cam disk connected to the said driven part; a winding gear for winding the said clock spring; a card printing lever; a stepping mechanism for operating the winding gear; a switch for establishing an operative relation between the card printing lever and the stepping mechanism only when the spring-box is incertain positions relatively to the said, spnd1e;and a cam on the said cam disk for'operating'the said switch.

2. In al timefrecording device, a springbox with, a spindle and clock springwhose and the other said driving wheel being adapted to cooperate with the said spindle; a cam disk connected to the saiddriven part; a winding gear for winding the said clock spring; a card printing lever; a stepping mechanism for operating the winding gear; a stepping pawl on the card printing lever adapted to be thrown into and out out of engagement with, and to drive, the stepping mechanism; and a switch for throwing the said pawl into or out of the engagement with the stepping` mechanism according to the position ofthe spring-box relatively to the saidspindle.

3. In' a time recording device, a springboX with a spindle and clock spring whose one end is attached to the spindle and whose other end is attached tov the spring-box; a diiferential gearv with a driven part and two driving wheels for driving the driven part; the one said driving wheel being adapted to cooperatewith the spring-box and the other said driving wheel being adapted to cooperate with the said spindle; a cam disk connected to the said driven part; a winding gear for winding the said clock spring; a card printing lever; a stepping mechanism for operating the winding gear; a stepping pawl on the card printing lever adapted to be thrown into and out of engagement with, and to drive, the stepping mechanism; a switch for throwing the said pawl into or out of the engagement with the stepping mechanism; a gear wheel adapted to be revolved by the cam disk at a lower speed than this disk; a pin on the said gear wheel adapted to operate the said switch to throw the pawl out of engagement with the stepping mechanism when the clock spring is fully wound; and a cam on the cam disk for operating the switch to adapted to cooperate with 'the spring-box and the other said driving wheel being adapted to cooperate with the said spindle; a cam disk connected to the said driven part; a winding gear for winding the said clock spring; a card printing lever; a stepping mechanism for operating the winding gear; a switch for establishing an operative relation between the card printing lever and the stepping mechanism only when the spring-box is in certain positions relatively to the said spindle; a cam-on'the said cam disk for operating the said switch; a frame plate; a slot in the plate extending round a part of a circle; a kgear wheel adapted to be driven b-y the said cam disk; and a pin ixed to the gear wheel and projecting into the said slot.

5. In a time recording device, a springbox with a spindle and a clock spring whose one end isv attached to the spindle and whose other end is attached to the spring-box; a stepping wheel for winding the said spring; a card printing lever; a pawl connected to the card printing lever and adapted to engage with the stepping wheel; means for bringing the pawl alternately out of operative relation and into operative relation with the stepping wheel in different positions of the spring-box relatively to the said spindle; and a slide member for keeping the pawl out of engagement with the stepping wheel when the operative relation between it and the stepping wheel is established except at the last moment of a stepping movement of the pawl.

In testimony whereof we aix our signatures.

ERNST J AUCH. EUGEN JAUCH. HEINRICH SCHMID. 

